Banks are boosting efforts to sell distressed US home loans, according to two buyers of the debt. Lenders have sought bids on about $10bn of troubled mortgages in recent months, more than in all of 2008 and 2009, and probably disposed of about $3bn of those, Jon Daurio, chief executive officer of Kondaur Capital Corp., said Monday during a panel discussion at the Mortgage Bankers Association conference in New York.